Terraform 101

Dive in to using Terraform to provision AWS resources.

Why We Use Terraform

What?

* IaC - audit, governance, repeatability, versioning etc ...

* Infrastructure | Platform provisioning
    ... not really for OS / app level configuration
    ... it's not a cfg management tool really.

Why?

* Mutable vs. Immutable || Build time vs. Deploy time.

* Procedural vs. Declarative

* Client Vs. Client/Server or Master/Agent

* Maturity

See post by gruntworks.io for thorough explanation and comparison.

NOTES TO INSTRUCTOR

To complete this tutorial you need an AWS account with:

• a public subnet (for spinning up the EC2 resources)

• a route53 public hosted zone

• an pre-created S3 bucket for storing terraform state.

Fork this repo.

Edit the setenv file with your vals.

Make sure you have gettext installed (provides the envsubst command).

Before the lesson, source the setenv script to set the correct vals in the code.

Commit and push back to your fork, or distribute to students in some other way.